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3 years ago

Mariko and Kell are working jobs that they get paid by the hour.

Mathematics

1 answer:

marin [14]3 years ago

4 0

Answer:

Kell makes $8.50 an hour

Kell makes $1.50 more an hour

Add all three money earned by the total hours worked. 8.50

Step-by-step explanation:

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The table below shows some inputs and outputs of the invertible function fff with domain all real numbers.

kherson [118]

Answer:

$f^{-1}(-2) = 3$

$f^{-1}(-1) = 18$

Step-by-step explanation:

Table

x | 5 | 3 | 1 | 18 | 0 | 9

f(x) | 9 | -2 | -5 | -1 | 1 | 11

We are asked ti find the following values: $f^{-1} (-2)$ and $f^{-1} (-1)$

$f^{-1}(x)$ is the inverse of f(x).

In the same way that given some x value you obtain f(x), if you have an $f^{-1}(x)$ value, you obtain x values

7 0

3 years ago

Read 2 more answers

A) What step I messed up on?

kicyunya [14]

Answer:

2.5 : 1

Step-by-step explanation:

(1) 150 : 60 ← divide both parts by 10

(2) 15 : 6 → ( not 100 : 60) ← divide both parts by 3

(3) 5 : 2 ← divide both parts by 2

(4) 2.5 : 1

5 0

3 years ago

Diego then says if we take half the first number and double the second the sum is 14. write an equation that could represent thi

Anon25 [30]

x = the first number

(x/2)² = 14

Hope this helps!

Can I get brainliest? thanks.

5 0

3 years ago

X²+x-6=0<br><br>hãy tìm giá trị của x trong câu trên

Gennadij [26K]

Tìm giá trị của x :

${x}^{2} + x - 6 = 0$

$x {}^{2} + 3x - 2x - 6 = 0$

$x(x + 3) - 2(x + 3) = 0$

$(x + 3)(x - 2) = 0$

Bây giờ, có hai trường hợp :

Trường hợp 1. khi nào x + 3 = 0

x = -3

Trường hợp 2. khi nào x - 2 = 0

x = 2

Tôi hy vọng nó đã giúp !

6 0

2 years ago

If log10(x^{2}y^{3})=7 and log10 (x/y)=1 , then x=__ and y= __

yuradex [85]

Answer:

$x=100$

$y=10$

Step-by-step explanation:

we are given

$log_1_0(\frac{x}{y})=1$

Firstly, we will get rid of log

so, we will take exponent over 10 on both sides

$10^{log_1_0(\frac{x}{y})}=10^{1}$

now, we can simplify it

$\frac{x}{y}=10$

now, we can solve for x

$x=10y$

we are given

$log_1_0(x^2y^3)=7$

Firstly, we will get rid of log

so, we will take exponent of 10 on both sides

$10^{log_1_0(x^2y^3)}=10^7$

$x^2y^3=10^7$

now, we can plug back x from first equation

$(10y)^2y^3=10^7$

now, we can solve for y

$100y^5=10000000$

$\frac{100y^5}{100}=\frac{10000000}{100}$

$y^5=100000$

now, we can take radical 5

$y=\sqrt[5]{100000}$

$y=10$

now, we can find x

$x=10\times 10$

$x=100$

So, solution is

$x=100$

$y=10$

4 0

4 years ago